QCD sum rule approach to the new mesons and the $g_{D_{sJ}DK}$ coupling constant
| dc.creator | Nielsen, Marina | |
| dc.date | 2006-10-24 | |
| dc.date.accessioned | 2026-07-07T10:42:07Z | |
| dc.date.available | 2026-07-07T10:42:07Z | |
| dc.description | We use diquark-antidiquark currents to investigate the masses and partial decay widths of the recently observed mesons $D_{sJ}^{+}(2317)$, $D_0^{*0}(2308)$ and X(3872), considered as four-quark states, in a QCD sum rule approach. In particular we investigate the coupling constant $g_{D_{sJ}DK}$. We found that the $g_{D_{sJ}DK}$ obtained in this four-quark scenario is smaller than the coupling constant obtained when $D_{sJ}^{+}(2317)$ is considered as a conventional $c\bar{s}$ state. | |
| dc.description | 3 pages 1 eps figure, proceedings of the 36th. International Symposium on Multiparticle Dynamics (ISMD 2006) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0610320 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0610320 | |
| dc.identifier | Braz.J.Phys.37:742-744,2007 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/181838 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | QCD sum rule approach to the new mesons and the $g_{D_{sJ}DK}$ coupling constant | |
| dc.type | text |